Explore the atmospheric ruins of an abandoned convent in the dense forests of Mexico's first national park.

This incredible college library is a visual masterpiece of mosaic art. It also looks kind of like a giant boombox.

A museum in the former home of Marxist revolutionary Leon Trotsky.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.

The only castle in North America to ever house European sovereigns.

Diego Rivera's massive tiled fountain and failed infrastructure project.

The famous artist couple lived and worked here, in two different houses connected by a bridge.

66,000 pieces of art, donated by one of the world's richest men.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

Part bookstore, part café, and part forest.

Frida Kahlo's childhood home, now a museum of her life and works.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

This cemetery features modernist statues as strange as its name.

This semi-secret storybook hedge maze is also the oldest garden in the city.

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

A Mexican Romeo-and-Juliet-esque legend has given this super-narrow alleyway a reputation for romance.

No one knows the meaning behind this giant sculpture of a nude woman with a fork riding a rooster in Havana.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

These small sculptures pay homage to the lovable star of an iconic Argentine comic strip.

A bright little alley in La Boca is a part of tango history.